world=createWorld(start=[-200,200],end=[200,-200],marker=1)# Add some nodes to the measurement points to increase the accuracy a bit[world.createNode(x_,0.0,1)forx_inx]mesh=createMesh([world,circ],quality=34)mesh=mesh.createP2()density=pg.solver.parseMapToCellArray([[1,0.0],[2,dRho]],mesh)u=pg.solver.solve(mesh,a=1,f=density,uB=[[-2,0],[-1,0]])